vs
3.8Noise control & calls3.8
Why is ATH-M50xBT2 better than Hi-X55?
ATH-M50xBT2 has no measurable advantages in this pair.
Why is Hi-X55 better than ATH-M50xBT2?
- Lowest frequency15 Hz vs 5 Hz3×
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | Over-ear |
| Ear cup design | Closed-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 45 mm | — |
| Number of drivers | 1 | — |
| Lowest frequency | 15 Hz | 5 Hz |
| Highest frequency | 28,000 Hz | 28,000 Hz |
| Impedance | 38 Ω | 25 Ω |
| Sensitivity | 99 dB | 118 dB |
| Adjustable equaliser | Yes | — |
| Noise control | ||
| Active noise cancelling | No | No |
| Battery & charging | ||
| Battery life | 50 h | — |
| Charging time | 3.5 h | — |
| Quick charge (claimed) | 10 min → 3 h | — |
| Fast charging support | Yes | — |
| Connectivity | ||
| Wireless | Yes | No |
| Bluetooth version | 5 | — |
| Bluetooth codecs | LDAC, aptX, AAC, SBC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | Yes | — |
| aptX | Yes | — |
| LDAC | Yes | — |
| Multipoint (two devices) | Yes | — |
| USB-C | Yes | — |
| 3.5 mm jack / AUX | Yes | Yes |
| Design & build | ||
| Weight | 307 g | 305 g |
| Foldable | Yes | Yes |
| Colours | — | Grey |
| Features | ||
| Hands-free calls | Yes | — |
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